Calculating machine



Ap 6, 1943; c M. FRIDEN CALCULATING moan;

Filed. Ka 10, 1940 5 Sheiets-Sheet 2 ATTOENEY-Q April 6, 1943.

c. M. FRIDEN CALCULATING MACHINE 5 Sheets-Sheet 3 Filed May 10, 1940 INVENTOR Carl M. H'I'der) ATTORNEY April 6, 1943. c; M. FRIDEN ,3

CALCULATING- mwnm: I I 'Fned llay 10, 1940 5 Sheets-Sheet 4 FIE 4 L INVENTOR v C'ar/ M. Fr/de'n ATTORNEY April 6, 1943. c. M. FRIDEN CALCULATING MACHINE e Y t T E W T, N F M h \1 W 0 a f A m d r S Q 5 Filed May 10, 1940 Patented Apr. 6, 1943.

CALCULATING MACHINE Carl M. Frlden, Pleasanton, alii'., assignor to Friden Calculating Machine 00., Inc., a corporation oi California Application May 10, 1940, Serial No. 334,366

8 Claims. (Cl. 235-63) This invention relates to calculating machines of the type having an ordinally shiftable carriage in which the accumulator and revolutions counter are mounted, and is concerned more particularly with the provision of selective control means therefor whereby the carriage can either be tabulated to one end position, or tabulated to the setting operation of the registers.

it is an object of the invention, therefore, to provide improved selective control means for con trolling shifting and resetting operations of a shiftable register.

Another object of th invention is to provide lmprovedshifting and resetting control means whereby the carriage can optionally be tabulated to an end position without a resetting operation other end position with the combination or a reor tabulated to another end position coupled with a resetting operation.

Other objects and advantages of the invention will be apparent from the following description of a preferred embodiment thereof, as illustrated in the accompanying drawings, in which:

Figure 1 is a sectional elevational view or a calculating machine embodying the invention, the plane of the view being indicated by the line i-l in Figure 3.

Figure 2 is side elevational view of the calculat-' ing machine illustrating certain of the control mechanisms with some parts shown in section, the view being taken as indicated by section line 2-2 in Figure 3.

Figure 3 is a plan view of the calculating machine with the carriage and keyboard removed and with certain parts shown schematically.

Figure 4 is a rear elevational view with certain Machines of this type are illustrated in my co-.

pending applications, Serial No. .724,482, filed May 8, 1934, Serial No. 27,338, filed June 19, 1935, and Serial No. 42,268, filed September 26, 1935.

Generally, the machine comprises a frame and a carriage mounted for endwise shifting movement on the frame. The carriage has mounted therein the registers of the machine comprising the accumulator and the revolutions counter, while the frame provides a support for the various mechanisms for entering values in the registers. The frame includes base it (Figure l) which supports casing ii and has left and right side frame plates i2 and I3 (Figs. 1 and 3) mounted thereon. Side plates l2 and i3 are con nected by various cross frame brackets i6, ll, id, and it which serve to mount variou mech anlsms referred to hereinafter. Register carriage 222 (Fig. i) is mounted on frame brackets l5 and id, as by rollers 23, for endwise shifting movement laterally of the machine in either direction to various ordinal positions as controlled by means described hereinafter.

Register carriage 22 (Fig. 1) includes a carriage frame 25 in which numeral wheels M are mounted by numeral wheel shafts 32 journaled in frame 24. To transmit increments of value to the numeral wheels 3i, each shaft 32 extends below the carriage frame 24 and has ten'tooth numeral wheel gear 33 which is actuated by means described later.

Means are provided in carriage 22 for resetting numeral wheels 3! to zero registration, and such means may include rack bar 36 which cooperates with mutilated gears 31 carried by the numeral wheel shafts 32 in a conventional manner. The rack bar 38 may be actuated by manual means (not shown) or it may be operated by power operated means described hereinafter. The revolutions counter comprises numeral wheels 4! mounted on numeral wheel shafts 42 and having resetting means associated therewith including the rack bar 43 which is also of conventional construction and cooperates with the mutilated gears 44 on the shafts inthe usual manner. If desired, the rack bar 43 may be coupled to the bar 36 of the accumulator as shown in said co-pending application, Serial No. 42,268. Thus, each register in the carriage is provided with zeroizing means shiftable with the carriage, and these zeroizing means are adapted for power operation in a manner later described. The actuating means and the associated driving and value selecting means for the registers will now be described briefly as they are generally similar to those described in said application, Serial No. 724,482.

The values to be introduced into the accumulator numeral wheels are selected by means of a plurality of banks or orders of settable value keys 5|, one of which banks is illustrated in part in Figure 1. Each bank of keys II cooperates with selecting mechanism including a pair of parallel spring-urged slides 52 mounted for endwise movement to position gears 52 selected with respect to the stepped teeth of the associated actuating cylinder 04 in accordance with the value of the depressed key. Cylinders 04 are mounted on actuating shafts 61 having suitable bevel gear connections with transverse drive shaft 58 which is suitably journaled in side plates I2 and I3.

Transverse shaft 50 and actuating shafts 51 are driven cyclically from motor 09 (Fig. 1) through clutch GI (Fig. '7) which is driven by a suitable gearing 62 (Fig. 2) from motor shaft 83. Clutch BI (Fig. '7) is engaged or disengaged by oscillation of spring-urged clutch dog 04 mounted for rotation with shaft '50 and with respect to driving ratchet 68 which is ioumaled on shaft 58 and driven by gearing 02. Clutch control lever 81 pivoted on side plate It controls engagement or disengagement of the clutch by releasing or engaging the nose of dog 84 in the full cycle position thereof. During rotation of the clutch, clutch control lever 61 and parts associated therewith are maintained in active position by roller 88 carried by clutch control lever 61 and adapted for engagement with the periphery of the clutch, so that clutch control lever 6|- can only move to clutch disengaging position in the full cycle position of the parts shown in Figure 7.

Each pair of gears 53 (Fig. 1) is slidably mounted on a square shaft 'II (Fig. l) suitably Journaled in the frame and carrying a plus-minus gear spool 12 which is slidably and nonrctatably mounted on the associated shaft II and has opposite bevel gears 13, I4 for cooperation with the associated numeral wheel gear 23. The gears 13, 74 may be moved from their central neutral position shown in Figure 1 by any suitable means, such as the conventional plus and minus keys of the character disclosed in said application, 724,482.

The control of positive or negative registration is effected through strap 15 carried by rockable shaft 18 and the parts are normally maintained in their central neutral position by means of opposed centralizing arms I1 suitably pivoted on the side plate I2 and connected by spring I8 to be urged against stop I9 on plate I2, the upper end of centralizing arms I1 engage the opposite sides of a pin III which moves with the plusminus gears I8 and I4 and strap I5.

Carriage shifting mechanism.--Means are provided for shifting the carriage in either direction from one ordinal position to another by power driven means controlled by manually operable keys.

Carriage 22 (Figs. 1 and 4) has rack 22 mounted along the rear side thereof and the rack 02 is provided with vertical slots 83 formed in the lower edge thereof and spaced apart a distance equal to the ordinal spacing of the machine. Slots '3 are adapted for engagement by opposite shift pins 04 on shift gear 88 which i j urnaled on frame bracket i6 and is rotated by means described later to effect shifting of the carriage. One-half revolution of the gear 80 effects one ordinal spacing of the carriage. Suitable centralizing arms 81 may be associated with the shift gear 88.

The end slots 83 are formed in part by yieldable pawls 08 and 08 which rock against the respective springs when an attempt is made to shift the carriage past their respective and positions thereof.

In order to rotate the shift gear It in either direction by selectively operable drive connections from the actuating means of the machine, the two lowest order actuating shafts 01 (Figs. 1 and 3) are extended rearwardly and have respective collars 8| secured adjacent the ends thereof. Each collar BI is provided with a slidable tooth and slot connection 82 with a shiftable drive establishing collar 93 mounted on the end of the associated shaft 51. Each collar 92 has a tooth 94 adapted for engagement with the corresponding slot in one of respective gear sleeves IIII, I02 which are suitably journaled on the frame. Gear sleeve IOI 'has gear I02 meshing with idler gear I04 which meshes with shift gear 86. Gear sleeve I02 has gear I08 offset axially from idler gear I04 meshing with wide reverse idler gear I01 suitably Journaled on the frame and meshing with idler gear I04. Thus rotation of gear sleeves IOI and I02 in a clockwise direction as viewed in Figure 4 causes shifting of the carriage to the left and to the right respectively as viewed from the front of the machine.

Manually operable control means are provided for the carriage shifting mechanism to enable shifting the carriage in either direction through one or more ordinal spaces. Shift keys III, I I2 (Fig. 2) are depressible to initiate shifting the carriage to the right and left respectively as viewed from the front of the machine. Depression of either key serves to enable the associated drive connection as well as to engage the clutch and energize the motor. Keys III and H2 are suitably mounted for endwise movement on the frame plate I3 and carry respective pins H0 associated with lever H4 (Fig. 2) pivoted at IIS on the frame plate. One part of lever II4 has inclined cam slots H5 for cooperation with respective pins Ill. Lever H4 is connected by link II'I (Figs. 2 and '7).with the clutch control lever, so that the clutch is engaged upon depression of either shift key. At its lower end, lever II 4 (Fig. 2) is pivotally connected with lever III also suitably pivoted on the frame and carrying an insulated pin IIO operatively related to close contacts I20 of the motor circuit upon depression of either shift key.

To enable the respective drive connections from the actuating means to the carriage shifting mechanism upon depression of the shift key, the respective pins I,I2 (Fig. 6) overlie respective levers HI and I22 secured on shaft I23 and sleeve I24 pivoted on the shaft. Shafts I23 and sleeve I24 carry similar depending arms I20 and I2! respectively (Figs. 3 and 6) having their lower ends disposed in front of respective shift control rods I28 and I2! having springs I3l associated therewith to maintain them normally in inactive position. At their rearward ends, each of rods I28 and I 29 carries a fork I 32 engaging the associated shiftable collar 93 so that upon depression of either shift key the associated drive connection is established at the same time that the clutch is engaged and the motor is energized. Thus, by selective depression of shift keys III and H2, shift gear 88 can be rotated in either direction to effect shifting of the carriage.

Return clear mechanism.Means are provided whereby the carriage may be shifted to its left hand end position and displaced therefrom and then reset to zero registration after such return. This mechanism is generally of the type disclosed in the co-pending application of Carl M. Friden, Serial No. 42,268, filed September 26, 1935.

This mechanism includes a key I (Fig. 2) mounted for substantial endwise movement on side plate It by means of slot and pin connecnism, to energize the motor and to engage the clutch as well as to enable the resetting drive connection as will be described.

Arm Ill is secured on transversely extending shaft I5I suitably jourhaled on the frame work of the machine. To enable the drive upon depression of key Ill, shaft I5I (Fig. 2) carries depending arm I52 having pin I53 overlying the end of lever I54 pivoted at I55 on side plate I3. Lever Itl has upstanding arm I58 disposed for engagement with pin H8 on lever II8 so that when lever I54 is rocked clockwise upon depression of key I II levers lit and Ill are operated to engage the clutch and close the motor circu t.

To engage the left-hand shift mechanism upon depression of key MI, shaft lei (Fig. 1) carries arrn Isl having pusher link I58 pivotally secured to the upper end thereof and urged in a clockwise direction by spring I59. Pusher link I58 carries pin Iti which is operatively related to depending arm ltd secured on shaft I23 to cause rocking of shaft I23 upon movement of pusher iinkitt to the right as viewed in Figure 1. It will be recalled that shaft I23 carries depending arm I26 for operating the leftharid shift drive connection.

The operation of pusher link I58 upon depression of key MI also serves to enable the resetting drive connection, and for this purpose end IIit of link I58 is operatively related to the forward end of the resetting control rod I61 which extends rearwardly (Fig. 2) to carry fork I68 for BIB shiftable drive-establishing collar I89 having a drive connection with one of shafts 51 and adapted for engagement with sleeve I'll. Sleeve I1I (Fig. 4) carries cam I12 for oscillating arm I13 which is held engaged with the cam by spring I'M. Arm I13 has a pin and slot connection with slide I16 mounted for reciprocation on frame bracket I6. Slide I16 has offset tooth I11 for engagement with arm I18 depending from reciprocating actuating slide I19 adapted to operate the rack bars 36 and 43 respectively.

Thus upon depression of key ill, the carriage is first shifted to its left hand position as shown in Figure 4, and when in such position, another cycle of operation follows when actuating slide I18 can become effective to reset the accumulator and the revolutions counter to zero. During the resetting or clear cycle one of shift pins Bl becomes operative to oscillate yieldable pawl 88, whereby its end IBI (Figs. 2 and 4) rocks bell crank I69 to'effect release of key IlI. End I8I also strikes slide I82 to oscillate bell crank I83 whose lower end is connected by link I8l with arm I86 depending from shaft I81 (Figs. 1 and 2). Shaft I81 (Fig. 1) also carries arm I88 underlying pusher link I58 so that during the last cycle this pusher link is lifted to release the rod I81 so that only one resetting cycle can occur.

Carriage return.-Means are provided whereby simultaneous manipulations of shift key III and return clear key Ill causes return of the carriage to the right while disabling the clearing or resetting function of the key Ill. It will be recalled that upon depression of right hand shift key III, sleeve Ill and arm I21 associated therewith are oscillated to engage the right-hand shift drive connection. Arm I21 (Figs. 2 and 6) is connected by link I8I, depending arm I92, piv-.

oted on shaft III and having a bail connection I93 with an offset arm I8l underlying pusher link I58. Thus upon depression of key III to engage the right-hand shifting mechanism, the offset arm I 9l is oscillated to lift pusher link I58 and thereby disable its function with respect to the resetting drive connection and also with respect to the engagement of the left hand shift drive connection.

Thus, even though key MI is depressed its control over the left-hand shift mechanism and the resetting mechanism is disabled. However, the simultaneous depression of keys Ill and III actuates the lever system Ill, M8 (Fig. 2) to engage the clutch and close the motor circuit, and because at the same time the right-hand shift drive connection is enabled and will continue until the carriage arrives at its right-hand end position. This continued operation occurs because key MI is latched in depressed position and serves through the lever system I58, I I8, and Ill to also hold key III depressed because of the interengagement of pin IIE with the associated cam slot IIEI.

When the carriage reaches its right-hand end position as shown in Figure 5, pawl 89 is oscillated by one of shift pins 84 to oscillate lever I which is pivoted at III? on rock 82. In the right-hand end position of the carriage, end I98 of lever I88 overlies bell crank I83, so that upon rocking movement of lever I88 bell crank N9 and latch slide use (Fig. 2) are operated to release key MI and also key III.

I claim:

1. In a calculating machine having a shiftable carriage, a register in said carriage, mechanism for shifting said carriage to a pre-determined position thereof and effecting clearing of said register including a manually operable key, mechanism for shifting said carriage for one or more ordinal positions including a manually operable key, and means responsive to simultaneous depression of both said keys for effecting operation of said last-named mechanism under control of a portion of saidfirst-named mechanism to shift to a second pre-determined position without clearing of said register.

2. In a calculating machine having a shiftable carriage, a register in said carriage, mechanism for shifting said carriage to a pre-determlned position thereof and effecting clearing of said register including a manually operable key and means for latching said key in depressed position, mechanism for shifting said carriage for one or more ordinal positions including a manually operable shift key, and means responsive to simultaneous depression of both said keys for effecting operation of said last-named mechanism under control of a portion of said firstnamed mechanism to shift to a second pre-determined position'without clearing of said register, said last-named means including means for holding said shift key in depressed position under control of said latching means.

3. In acalculating machine having a shiftable carriage, a. register in said carriage, mechanism for shifting said carriage in one direction to a predetermined ordinal position thereof and effecting resetting of said register including a manually operable key, mechanism for shifting said carriage in the other direction for one or more ordinal positions including a manually operable key, and means responsive to simultaneous depression of both of said keys for eflecting operation of said last-named mechanism under control of a portion of said first-named mechanism to shift the carriage in said other direction to a second pro-determined position without resetting of said register.

4. In a calculating machine having a shiftable carriage, mechanism for shifting said carriage in one direction to a pre-determined ordinal position thereof including a manually operable key, mechanism for shifting said carriage in the other direction for one or more ordinal positions including a manually operable key, and means responsive to simultaneous depression of both of said keys for effecting operation of said lastnamed mechanism under control of a portion of said first-named mechanism to shift the carriage in said other direction to a second predetermined position.

5. In a calculating machine having a shiftable carriage, a register in said carriage, mechanism for shifting said carriage in one direction to a predetermined position thereof and for clearing said register while in said position including a manually operable key, and control mechanism foreffecting a carriage shifting operation including a second manually operable key, and means responsive to simultaneous depression of both of said keys for disabling said first-named mechanism to eliminate the shifting and clearing functions controlled by said first-named key while enabling carriage shifting under control of said last-named key.

6. In a calculatingmachine having a shiftable carriage, means for shifting said carriage selectively in either direction, means including a manually operable key for causing operation of said shifting means to position said carriage in a predetermined position thereof, said operation causing means including an operating connection movable upon depression of said key and having a yieldable normally active element therein, and other means for causing operation of said shifting means including means for moving said yieldable element to inactive position.

7. In a calculating machine having a shiftable carriage, means for shifting said carriage selectively in either direction, two controlling connections for said shifting means, means includng a key for operating one of said connections to effect shifting of said carriage to one end position thereof, means including a second key for operating the other of said connections to effect shifting of said carriage for one or more steps of movement, and means responsive to simultaneous depression of said keys for disabling said one connection and for causing operation of said second-named operating means under control of a portion of said first-named operating means to cause shifting of said carriage to the other end position thereof.

8. In a calculating machine having a shiftable carriage, a register in said carriage, mechanism for shifting said carriage to an end position thereof and effecting clearing of said register including a manually operable key, mechanism for shifting said carriage for one or more ordinal positions including a manually operable key, and means responsive to simultaneous depression of both said keys for effecting operation of said last-named mechanism under control of a portion of said first-named mechanism to shift said register to the other end position thereof without clearing of said register.

CARL M. FRIDEN. 

